/**
* usbd_device_event - called to respond to various usb events
* @device: pointer to struct device
* @event: event to respond to
*
* Used by a Bus driver to indicate an event.
*/
void usbd_device_event_irq (struct usb_device_instance *device, usb_device_event_t event, int data)
{
struct urb *urb;
usb_device_state_t state;
if (!device || !device->bus) {
dbg_usbe (1, "(%p,%d) NULL device or device->bus", device, event);
return;
}
state = device->device_state;
dbg_usbe (3, "-------------------------------------------------------------------------------------");
dbg_usbe (1,"%s", USBD_DEVICE_EVENTS(event));
switch (event) {
case DEVICE_UNKNOWN:
break;
case DEVICE_INIT:
device->device_state = STATE_INIT;
break;
case DEVICE_CREATE:
device->device_state = STATE_ATTACHED;
break;
case DEVICE_HUB_CONFIGURED:
device->device_state = STATE_POWERED;
break;
case DEVICE_RESET:
device->device_state = STATE_DEFAULT;
device->address = 0;
break;
case DEVICE_ADDRESS_ASSIGNED:
device->device_state = STATE_ADDRESSED;
break;
case DEVICE_CONFIGURED:
device->device_state = STATE_CONFIGURED;
break;
case DEVICE_DE_CONFIGURED:
device->device_state = STATE_ADDRESSED;
break;
case DEVICE_BUS_INACTIVE:
if (device->status != USBD_CLOSING) {
device->status = USBD_SUSPENDED;
}
break;
case DEVICE_BUS_ACTIVITY:
if (device->status != USBD_CLOSING) {
device->status = USBD_OK;
}
break;
case DEVICE_SET_INTERFACE:
break;
case DEVICE_SET_FEATURE:
break;
case DEVICE_CLEAR_FEATURE:
break;
case DEVICE_POWER_INTERRUPTION:
device->device_state = STATE_POWERED;
break;
case DEVICE_HUB_RESET:
device->device_state = STATE_ATTACHED;
break;
case DEVICE_DESTROY:
device->device_state = STATE_UNKNOWN;
break;
case DEVICE_FUNCTION_PRIVATE:
break;
}
dbg_usbe (3, "%s event: %d oldstate: %d newstate: %d status: %d address: %d", device->name, event, state, device->device_state, device->status, device->address);;
// tell the bus interface driver
if (device->bus && device->bus->driver->ops->device_event) {
dbg_usbe (3, "calling bus->event");
device->bus->driver->ops->device_event (device, event, data);
}
#if 0
if (device->function_instance_array && (device->function_instance_array + port)->function_driver->ops->event) {
dbg_usbe (3, "calling function->event");
(device->function_instance_array + port)->function_driver->ops->event (device, event);
}
#endif
if (device->ep0 && device->ep0->function_driver->ops->event) {
dbg_usbe (3, "calling ep0->event");
device->ep0->function_driver->ops->event (device, event, data);
}
#if 0
// tell the bus interface driver
if (device->bus && device->bus->driver->ops->device_event) {
dbg_usbe (3, "calling bus->event");
device->bus->driver->ops->device_event (device, event);
}
#endif
// dbg_usbe(0, "FINISHED - NO FUNCTION BH");
// return;
// XXX
// queue an urb to endpoint zero
dbg_usbe(1,"queueing event urb");
if ((urb = usbd_alloc_urb (device, device->function_instance_array, 0, 0))) {
urb->event = event;
urb->data = data;
urb_append_irq (&(urb->endpoint->events), urb);
usbd_schedule_function_bh (device);
}
dbg_usbe (5, "FINISHED");
return;
}
/**
* bi_device_event - handle generic bus event
* @device: device pointer
* @event: interrupt event
*
* Called by usb core layer to inform bus of an event.
*/
int bi_device_event (struct usb_device_instance *device, usb_device_event_t event, int data)
{
//printk(KERN_DEBUG "bi_device_event: event: %d\n", event);
if (!device) {
return 0;
}
dbg_usbe (1,"%s", USBD_DEVICE_EVENTS(event));
switch (event) {
case DEVICE_UNKNOWN:
break;
case DEVICE_INIT:
break;
case DEVICE_CREATE: // XXX should this stuff be in DEVICE_INIT?
// enable upstream port
//ep0_enable(device);
// for net_create
bi_config (device);
// enable udc, enable interrupts, enable connect
printk(KERN_INFO"bi_device_event: call udc_enable\n");
udc_enable (device);
printk(KERN_INFO"bi_device_event: call udc_all_interrupts\n");
// XXX verify
udc_suspended_interrupts (device);
//udc_all_interrupts (device);
dbg_usbe (1, "CREATE done");
break;
case DEVICE_HUB_CONFIGURED:
udc_connect ();
break;
case DEVICE_RESET:
device->address = 0;
udc_set_address (device->address);
udc_reset_ep (0);
// XXX verify
udc_suspended_interrupts (device);
dbg_usbe (1, "DEVICE RESET done: %d", device->address);
break;
case DEVICE_ADDRESS_ASSIGNED:
udc_set_address (device->address);
device->status = USBD_OK;
// XXX verify
udc_all_interrupts (device); // XXX
break;
case DEVICE_CONFIGURED:
device->status = USBD_OK;
bi_config (device);
break;
case DEVICE_DE_CONFIGURED:
{
int ep;
for (ep = 1; ep < udc_max_endpoints (); ep++)
udc_reset_ep (ep);
}
break;
case DEVICE_SET_INTERFACE:
bi_config (device);
break;
case DEVICE_SET_FEATURE:
break;
case DEVICE_CLEAR_FEATURE:
break;
case DEVICE_BUS_INACTIVE:
// disable suspend interrupt
udc_suspended_interrupts (device);
// XXX check on linkup and sl11
// if we are no longer connected then force a reset
if (!udc_connected ()) {
usbd_device_event_irq (device, DEVICE_RESET, 0);
}
break;
case DEVICE_BUS_ACTIVITY:
// enable suspend interrupt
udc_all_interrupts (device);
break;
case DEVICE_POWER_INTERRUPTION:
break;
case DEVICE_HUB_RESET:
break;
case DEVICE_DESTROY:
udc_disconnect ();
bi_disable_endpoints (device);
udc_disable_interrupts (device);
udc_disable ();
break;
case DEVICE_FUNCTION_PRIVATE:
break;
}
return 0;
}
